When we search for something, the computer cache it. This means that when the page is requested again by a user, the software will download the data again and cache it without any need to re-request the data. This also means that the cache is very small, which means that if you have a large amount of data to transfer, this won’t take long to do.
Google’s cache is one of the largest in the entire world, and it’s been getting larger and larger as time has gone on. I think Google is still very new to the whole cache thing, so I don’t know the exact number of milliseconds it takes to transfer a cached page, but I think it takes about 4 seconds.
I don’t know about you, but I wouldnt mind it if google cached my pages more quickly than it did with google.com.